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1. 发明公开

EP3099985A1 KÄLTEANLAGE 有权转让
公开(公告)号：EP3099985A1
公开(公告)日：2016-12-07
申请号：EP15701214.7
申请日：2015-01-26
申请人： BITZER Kühlmaschinenbau GmbH
发明人： JAVERSCHEK, Oliver , CRAIG, John
IPC分类号： F25B1/06 , F25B40/04 , F25B5/02 , F25B1/10
CPC分类号： F25B40/04 , F25B1/10 , F25B5/02 , F25B2400/23
摘要： In order for a refrigeration plant, comprising a refrigerant circuit, in which a total mass flow of a refrigerant is guided, a refrigerant-cooling heat exchanger on the high pressure side, an expansion element which generates a main mass flow of liquid refrigerant and an additional mass flow of gaseous refrigerant which enter an intermediate pressure collector, at least one normal cooling stage which taps off a normal cooling mass flow from the main mass flow and expands it in a normal cooling expansion unit, a deep-cooling intermediate pressure expansion unit which feeds to a deep-cooling intermediate pressure collector a deep-cooling main mass flow of liquid refrigerant and a deep-cooling additional mass flow of gaseous refrigerant, a deep-cooling stage which conducts the deep-cooling main mass flow away from the deep-cooling intermediate pressure collector and has at least one deep-cooling expansion unit, a deep-cooling compressor unit which compresses the deep-cooling main mass flow and feeds it to a refrigerant compressor unit for compressing it to high pressure, to be improved such that the risk of aspiration of liquid is considerably reduced, it is proposed that the additional mass flow is expanded via an expansion element and is fed to the deep-cooling intermediate pressure collector such that a liquid phase separates off in the deep-cooling intermediate pressure collector and such that a gas phase of the additional mass flow, which forms in the deep-cooling intermediate pressure collector, is fed together with the deep-cooling additional mass flow to an additional mass flow compressor unit for compressing it to high pressure.
摘要翻译：为了制冷设备包括制冷剂回路，在制冷剂回路中引导制冷剂的总质量流量，在高压侧的制冷剂冷却热交换器，产生液体制冷剂的主质量流量的膨胀元件和进入中间压力收集器的气态制冷剂的额外质量流量，至少一个正常冷却阶段，其从主质量流量中抽出正常冷却质量流量并且将其在正常冷却膨胀单元中膨胀;深冷中间压力膨胀单元其向深冷中间压力集气器供给液体制冷剂的深冷主质量流和气体制冷剂的深冷额外质量流;深冷阶段，其将深冷主质量流从深处 - 冷却中间压力收集器，并具有至少一个深冷膨胀单元， - 深冷压缩机单元，其压缩深冷主质量流量并且将其供给到制冷剂压缩机单元以将其压缩到高压，从而被改进成使得吸入液体的风险显着降低，建议附加质量流量经由膨胀元件膨胀并且被供给到深冷中间压力收集器，使得液相在深冷中间压力收集器中分离并且使得在深冷中间压力收集器中形成的附加质量流的气相与深度 - 将额外的质量流量冷却到额外的质量流量压缩机单元以将其压缩至高压。

2. 发明公开

EP3830500A2 KÄLTEMITTELKREISLAUF 审中-实审
公开(公告)号：EP3830500A2
公开(公告)日：2021-06-09
申请号：EP19746487.8
申请日：2019-08-01
申请人： BITZER Kühlmaschinenbau GmbH
发明人： JAVERSCHEK, Oliver , KARBINER, Julian , NICKL, Jörg , MANNEWITZ, Jens
IPC分类号： F25B11/02 , F25B49/02

3. 发明公开

EP3830499A1 KÄLTEMITTELKREISLAUF 审中-实审
公开(公告)号：EP3830499A1
公开(公告)日：2021-06-09
申请号：EP18750160.6
申请日：2018-08-01
申请人： BITZER Kühlmaschinenbau GmbH
发明人： JAVERSCHEK, Oliver , KARBINER, Julian , NICKL, Jörg
IPC分类号： F25B11/02 , F25B49/02

4. 发明公开

EP3329190A2 KÄLTEANLAGE 有权转让
公开(公告)号：EP3329190A2
公开(公告)日：2018-06-06
申请号：EP16744371.2
申请日：2016-07-26
申请人： Bitzer Kühlmaschinenbau GmbH
发明人： JAVERSCHEK, Oliver
IPC分类号： F25B1/10 , F25B49/02 , F25B5/02 , F25B9/00 , F25B41/04
CPC分类号： F25B49/022 , F25B1/10 , F25B5/02 , F25B9/008 , F25B25/005 , F25B39/04 , F25B41/04 , F25B43/006 , F25B49/02 , F25B2309/061 , F25B2339/044 , F25B2341/0662 , F25B2400/0401 , F25B2400/0751 , F25B2400/23 , F25B2500/19 , F25B2500/29 , F25B2600/0253 , F25B2600/2509 , F25B2600/2513 , F25B2600/2519 , F25B2700/1332 , F25B2700/1931 , F25B2700/21 , F25B2700/2106 , F25B2700/21163 , Y02B30/741
摘要： Disclosed is a refrigeration system comprising a refrigerant circuit, a heat exchanger, an expansion member which, in the active state, cools the entire mass flow of the refrigerant by expanding same, in said process generating a main mass flow of liquid refrigerant and an additional mass flow of gaseous refrigerant which enter an intermediate pressure accumulator, the refrigeration system further comprising at least one normal cooling stage which expands a normal cooling mass flow to a low pressure in at least one normal cooling expansion unit, in said process making available refrigerating power for normal cooling, the refrigeration system also comprising a refrigerant compressor unit that compresses the normal cooling mass flow from the low pressure to a high pressure, and a parallel compressor which, in a parallel compression mode of the refrigerant circuit, sucks in refrigerant from the intermediate pressure accumulator and compresses same to a high pressure. In order to increase the efficiency of a refrigeration system of this type, the power of the parallel compressor is controlled by a controller, the controller determines at least one reference variable representing a load condition of the refrigerant circuit, the controller determines a desired intermediate pressure value on the basis of the at least one reference variable at least in a parallel compression mode, and the controller adjusts the intermediate pressure in accordance with the desired intermediate pressure value at least in the parallel compression mode.

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